Home / 22,185.74-30,615.12-12,625.34

Finding the Fourth Proportional to 22,185.74, 30,615.12 and 12,625.34

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Solution

The fourth proportional to 22,185.74, 30,615.12 and 12,625.34 is: 17,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,185.74 : 30,615.12 = 12,625.34 : x
  2. Step 2: Convert to fraction form
    22,185.74/30,615.12 = 12,625.34/x
  3. Step 3: Cross multiply
    22,185.74x = 30,615.12 × 12,625.34
  4. Step 4: Simplify right side
    22,185.74x = 386,526,375.68
  5. Step 5: Solve for x
    x = 386,526,375.68/22,185.74
  6. Step 6: Final answer
    x = 17,422.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.